Method of making appliances for mechanical cosmetic treatment



H. GOTTLIIEB July 16, 1940.

METHOD OF MAKING APPLIANCES FOR MECHANICAL COSMETIC TREATMENT Filed May23, 1938 4 7 f J AZ'Z'okzzeya PatenteclJuly 16, 1940 METHOD. on MAKINGAPPLIANCES FOR MECHANICAL oosMETIo TREATMENT lierbert Gottlieb, Brunn,Czechoslovakia Application my 23, 1938, Serial No. 209,612

. In Czechoslovakia May 10, 1938' x 4 Claims.

For the mechanical removal of wrinkles and other defects of the skin,particularly on the face, elastically yieldable sheets, generally ofrubber, are used, and such sheets are applied .on the surface of thedesired part of the human body and tensioned thereupon by means ofstrips or the like attached to the sheets. Hitherto such sheets are cutfrom plane films so that after tensioning they cannot produce a uniformaction in all points. of the uneven surface of the part of the humanbody, particularly of the face, the surface of which is very irregular.This disadvantage becomes particularly apparent in commercial use of thesame cosmetic appliance, or of the sheet thereof, for different personswhose body organs differ considerably in the amount and distribution ofthe subcutaneous fat,

cellular tissue and the like..

In order to secure a strictly uniform action -of a cosmetic applianceof-the above kind on nary tensioning of certain parts thereof and thusthe intentionally produced. tension is transmitted uniformly on theentire surface 'of the skin covered by such sheet.-

In order to obtain such a sheet which in un-. tensioned conditionalready has the spatial shape of a part of the human body, for instanceof the face, a mould of the face is produced in a manner known per se ingypsum or another hardening material, and a thin layer of a plastic andhardening material which after setting is elastically yieldable, such aslatex, rubber solution or the like, is applied thereafter on the surfaceof the negative mould of the face thus obtained. To facilitate theremoval of the hardened spatially moulded sheet from the mould thesurface of the latter preferably is impregnated, before application ofthe sheet material,

- with an agent which is inert to such material and prevents the samefrom adhering to the.

action of: chemical preparations, such as face creams and the likerubbed into the skin. In order to provide for respiratory or otherrequired openings in the sheet, when so desired, the surface of themould may have formed at suitable points projections of convenientheight, made additionally for. instance from the mould material, andprojecting above the layer of the sheet material being applied. Toreinforce the edges of the openings so reserved against tearing duringthe tensioningof the Sheet a larger amount of the sheet materialpreferably is applied around the base contour of the projections andafter hardening of the sheet such an additional amount of material formsmarginal beats integral therewith. A particular advantage of theinvention consists in that the tensioning effect of the sheet may berestricted to a direction at right angles to that of the wrinkles toberemoved, and for this purpose, before application of the sheet material,during such application, or after the same,flexible but inextensiblestiffening elements, preferably of fibrous nature, for instance in theform of silk or other textile threads, extending substantially in thesame direction as the wrinkles to be removed, are placed on the surfaceof the mould, or are incorporated in the material being applied, or areplaced on the exposed internal surface of this material while the latteris still in a soft condition.

The drawing shows by way of example and schematic-ally an embodiment ofthe cosmetic appliance in accordance with this invention and V of themethod of making the same, in which Figure 1 is a sectional view of themould with a human head in a diagrammatic outline,

Fig. 2 is a sectional view illustrating the moulding operation, and

Fig. 3 is a side view of the appliance applied to a human head.

Fig. 1 shows in elevation the lower part of the facefrom which groups orwrinkles extending in different directions are to be removed by thecosmetic appliance according to this invention, and in section showsalso gypsum applied in order to obtain a negative mould of this part ofthe face. Fig. '2 shows the gypsum mould 2 treated on the outer facethereof and provided with an edge I. On the surface of the mould,impregnated with Vaseline or another material 3 which does not adhere torubber, there have been provided projections 4 at locationscorresponding to the mouth and nostrils, and then silk threads have beenintroduced into the mould at the locations and in the directions of thewrinkles to be removed and by spraying the entire mould surface has beencovered with a layer B of latex containing a vulcanizing agent, avulcanization accelerator, a dyestufi and an agent known per seenhancing the resistance of rubber to the action of fat or chemicalscontained in face creams. Around the base contours of the projections 4a greater amount of latex has been sprayed to form the reinforcingedges 1. When the layer has hardened into a sheet 6 having a'respiratoryopening 8 with reinforced edge 1, tension ing means 9 known per se havebeen secured, as shown in Fig. 3, and by means thereof the sheet, owingto the inextensible threads 5 incorporated therein, is tensioned on theface only in the desired directions at right angles to the wrinkles.

What I claim is: I

1. A method of producing an appliance for skin treatment, comprisingforming a negativemould from that part of the human body where the skinis to be treated, inserting projections into the mould surfacecorresponding in shape to mouth, eye, nose, etc. openings, and sprayinga layer of an elastically yieldable material into the negative mould toform a sheet layer which after drying presents the desired contourcorresponding to that part of the human body to be treated.

2. A method according to claim 1, in which during the spraying stepdifierent amounts of material are sprayed at difierent sections so thatthe appliance will have imparted thereto certain sections which willhave difierent stretching V 4. A method according to claim 1, in whichthe. step is-included of inserting a flexible thread around theperipheral edge of the sheet layer.

HERBERT C +OT'ILIEB

